Last week, we announced the CNN/YouTube Climate Debate in Copenhagen, an effort to make sure that your voice is included in the climate debate — and that your questions are posed to decision-makers on an international stage. Today, we want to inform you that panelists will include former U.N. Secretary General Kofi Annan, journalist Thomas Friedman, U.N. Executive Secretary Yves de Boer and author Bjorn Lomberg.

To submit your question for these leaders, upload a short video of yourself posing the question and submit it here: www.youtube.com/cop15. We've already seen some top-notch video questions like this one from Angela in Italy who wants to know about the consequences of climate change, and this question from Mo in Florida who is concerned about the cost of going green:

The top questions will be posed to leaders during the debate, and also projected onto the CO2 Cube, a 3-story art installation now residing in the center of Copenhagen, built to represent one metric ton of carbon and powered by YouTube videos related to the climate crisis. Here's an in-depth look at this stunning artistic display:

You can submit your video at www.youtube.com/cop15 and vote on questions for potential inclusion in the debate and on the Cube. The debate will be live-streamed in full on the COP 15 channel, and onto the Cube, on December 15 so make sure to watch and see if world leaders answer your question.